General

  • Target

    Earings.exe

  • Size

    3.2MB

  • Sample

    220111-tpm98sgca9

  • MD5

    f0651beda340088ea94e3e8cb3fbba9b

  • SHA1

    96d7f413100aa077898ba4f8c2ccb68cf641cba7

  • SHA256

    1a3cce0f5c02511e834306988d41a92e1fb868af6a460633f9d50a1c18f70342

  • SHA512

    e589ee2aaa6ed8d4c6c7f7b16b0d8dc72a8f3a7a7ed14db29b7533935d89cc552d3a6562c7ff8d1a6cde893cdaccf4ee6e6cb14cf60f1ad786c7c5361d348822

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5095036073:AAEUdbdoQ_lgs7wZgrR-XxCyddDuY92GVFk/sendDocument

Targets

    • Target

      Earings.exe

    • Size

      3.2MB

    • MD5

      f0651beda340088ea94e3e8cb3fbba9b

    • SHA1

      96d7f413100aa077898ba4f8c2ccb68cf641cba7

    • SHA256

      1a3cce0f5c02511e834306988d41a92e1fb868af6a460633f9d50a1c18f70342

    • SHA512

      e589ee2aaa6ed8d4c6c7f7b16b0d8dc72a8f3a7a7ed14db29b7533935d89cc552d3a6562c7ff8d1a6cde893cdaccf4ee6e6cb14cf60f1ad786c7c5361d348822

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • AgentTesla Payload

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses Microsoft Outlook profiles

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks